My wife rolls here eyes every time I watch the show--she doesn't get the humor. She doesn't find the humor at all in "The Most Beautiful Girl (in the Room)":

Cause you're so beautiful
Like a, tree
Or a high-class prostitute
You're so beautiful
Mmm, you could be a part-time model

But you'd probably have to keep your normal job
A part-time model!
Spending part of your time, modelling,
and part of your time, next to meeeeeeeeee!
My place is usually tidier than this...